Cal. Health and Safety Code § 11848.5

(a) Once the negotiated rate with service providers has been approved by the county, all participating governmental funding sources, except the Medi-Cal program (Chapter 7 (commencing with Section 14000) of Part 3 of Division 9 of the Welfare and Institutions Code), shall be bound to that rate as the cost of providing all or part of the total county alcohol and other drug program as described in the county contract for each fiscal year to the extent that the governmental funding sources participate in funding the county alcohol and other drug program. Where the State Department of Health Services adopts regulations for determining reimbursement of alcohol and other drug program services formerly allowable under the Short-Doyle program and reimbursed under the Medi-Cal Act, those regulations shall be controlling only as to the rates for reimbursement of alcohol and other drug program services allowable under the Medi-Cal program and rendered to Medi-Cal beneficiaries. Providers under this section shall report to the department and the county any information required by the department in accordance with the procedures established by the director of the department. (b) The Legislature recognizes that alcohol and other drug services differ from mental health services provided through the State Department of Health Care Services and therefore should not necessarily be bound by rate determination methodology used for reimbursement of those services formerly provided under the Short-Doyle program and reimbursed under the Medi-Cal Act.